Mayfield Advisors, Inc.
- Regulatory AUM
- $143M
- Discretionary
- $143M
- Clients
- 40
- Avg AUM / client
- $3.6M
- Accounts
- 117
- Employees
- 4
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 02, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 15 | $13.6M | 9.47% |
| High net worth individuals | 23 | $127M | 88.5% |
| Pension and profit sharing plans | 1 | $2.0M | 1.37% |
| Charitable organizations | 1 | $994K | 0.69% |
People (4)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Lamberto Duran Torres | President, Secretary, Treasurer | CFP | Jan 2007 (20y) | 75% or more |
| Mark Santa Maria Torres | Chief Compliance Officer And Advisor | CFP | Oct 2020 (6y) | Less than 5% |
| Yu Chi Peng Lee | Registered representative | Oct 2007 (19y) | ||
| Christopher Santa Maria Torres | Registered representative | Jan 2025 (2y) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/02/2026 | 990 KB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Hourly charges
- • Fixed fees
Services
- • Financial planning services
- • Portfolio management for individuals/small businesses
- • Portfolio management for businesses/institutional clients
- • Pension consulting services
- • Selection of other advisers
- • Other services
Custody
Reported custodians
- Charles Schwab & Co. $75.4M (53% of AUM) Mar 2026
- National Financial Services (Fidelity) $68.0M (47% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports having custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 02, 2026.
View current Form ADV (SEC/IAPD) ↗